WORRY-FREE FEEDING - You can go away knowing your fish are being properly fed and cared for. Our fish feed on multiple types of foods including flakes, pellets, powders and straps. It is an ideal choice for aquariums and home aquariums with multiple species of aquatic animals. Dispensing food every 8/12/24 hours, this feeder is easy to set up and adjust. The doser can be assembled either by attaching it to the tank wall or by gluing it to the tank lid. It has an adjustable slider, which allows easily increase or decrease the amount of food dispensed.